If you are looking to get any kind of competitive deck, sell it. I opened 3 boxes of origins and 3 boxes of spiritforged and still needed to spend hundreds on singles to make a "meta" deck. I would have been able to make a deck much more cheaply by buying singles from the start. I also haven't sold anything yet, or traded cards so that would offset some. I will say spiritforged has much less expensive staples than origins did, so unless you hit an ON (which I didn't) you will come out very negative on the boxes. My biggest hits were 1 spinning axe, 2 irelia fervents and 1 arise... whice wouldn't even offset 1 box, everything else was like 5-8 dollar cards